{ pkgs, lib, ... }: { home.packages = with pkgs; [ brightnessctl ]; xsession.windowManager.i3.config = { keybindings = lib.mkOptionDefault { "XF86MonBrightnessUp" = "exec --no-startup-id brightnessctl set +5%"; "XF86MonBrightnessDown" = "exec --no-startup-id brightnessctl set 5%-"; }; workspaceOutputAssign = [ { output = "eDP-1"; workspace = "1"; } { output = "HDMI-2"; workspace = "2"; } ]; }; }